How to Kill Blackberry Crowns


Blackberries, once established, are hard to eradicate unless you either dig up the crowns or spray them annually with a broad-spectrum herbicide or a product specifically for brush control. Killing the crowns, or nodes, takes diligence and persistence because any crown that is missed will produce blackberry canes in the spring.

Step 1

Keep the blackberry canes, or vines, mowed down during the spring and summer months. This can be done with a lawnmower in small areas or you may need to use a brush hog for large or overgrown areas. Keep the area mowed during the entire spring and summer months.

Step 2

Dig up all blackberry crowns you can locate. Each crown or node can produce a new plant. Dispose of the crowns in the trash or other area where they cannot begin to re-grow.

Step 3

Mow the area and spray with a broad-spectrum herbicide or a product designated for brush control during the fall months. You can apply the product anytime in the fall before the first frost. Applying the herbicide to the canes during the spring and summer will not give the desired effect.

Things You'll Need

  • Lawnmower or brush hog
  • Shovel
  • Broad-spectrum herbicide or brush-control solution


  • University of California: Agriculture and Natural Resources
  • Oregon State University: Blackberries take persistence and time to control
Keywords: kill blackberry plants, destroy wild blackberries, eradicate wild blackberries

About this Author

G. K. Bayne is a freelance writer, currently writing for Demand Studios where her expertise in back-to-basics, computers and electrical equipment are the basis of her body of work. Bayne began her writing career in 1975 and has written for Demand since 2007.